| 15 / | HD | BRUSHING, SCRUBBING, AND GENERAL CLEANING |
| 3 | DF | MACHINES {11} |
| 300.1 | DF | .~ With air blast or suction {26} |
| 363 | DF | .~.~ With mechanical agitating means {12} |
| 368 | DF | .~.~.~ Adjustable with respect to nozzle {4} |
| 371 | DF | .~.~.~.~ Floating or resiliently biased contact with work surface {1} |
| 372 | | .~.~.~.~.~ Rotary work contactor |